QRZ.RU EXPRESS от 20 апреля 2022

Опубликовано: 2022 Apr 19 1237 UTC
SIDC URSIGRAM 20419
Состояние солнечной активности на 19 Apr 2022, 1235UT
Прогноз сделан для периода с 1230UT, 19 Apr 2022 до 21 Apr 2022)
SOLAR FLARES : M-class flares expected (probability >=50%)
Геомагнитное поле: Спокойное состояние (A<20 and K<4)
Солнечные протоны: Спокойное состояние
Прогноз на 19 Apr 2022: плотность потока солнечного излучения: 140, A-индекс: 016
Прогноз на 20 Apr 2022: плотность потока солнечного излучения: 145, A-индекс: 016
Прогноз на 21 Apr 2022: плотность потока солнечного излучения: 145, A-индекс: 007
Комментарий (на английском языке): Solar flaring activity was moderate. Two M flares occurred. One peaking at M1.9 level at 17:24 UT from Catania sunspot group 76 (NOAA active region 2992) which is now rounding the west limb. The other was an M1.0 flare peaking at 4:50 UT this morning from Catania sunspot group 81 (NOAA active region 2993) in the north-east. With Catania sunspot group 76 (NOAA active region 2992) now rounding the West limb, only the regions in the north-east are now of particular attention. Both Catania sunspot groups 81 and 82 (NOAA active region 2993 and 2994) are fairly large regions with a beta-gamma configuration of the photospheric magnetic field. Most of the flux emergence and mixed magnetic field is found in the region between the leading spots of both groups. There are two additional sunspot groups marked to the east of these regions with Catania sunspot group 84 the most significant. It is currently marked as unipolar but this remains to be confirmed as the region rotates further onto the disc. The CME of the afternoon of April 17, propagating towards the south-west as reported yesterday is not expected to have an Earth directed component. No other Earth directed CMEs were identified in coronagraph images. The greater than 10 MeV proton flux was at background levels and is expected to remain so. The greater than 2 MeV electron flux reached briefly above the 1000 pfu alert threshold at the diurnal maximum. The 24h electron fluence reached moderate levels and is expected to be normal to moderate, following the high speed stream Solar wind conditions. Solar wind showed a slow but steady decline of the high speed stream conditions. The solar wind velocity decreased from around 550km/s to under 500 km/s. The interplanetary magnetic field was around 5nT with a variable and unremarkable north-south component, and the orientation indicating connection to a positive polarity sector. There are no signs of a glancing blow of the CME of the morning of April 17 yet. This could still occur later today, but chances are low. A further steady return to slow solar wind conditions is expected. Geomagnetic conditions were quiet to unsettled (NOAA Kp and local K Belgium 1-3). Geomagnetic conditions are expected to be quiet to unsettled. But they could reach active conditions if a glancing blow from the CME of the morning of April 17 would still occur.Сегодняшнее значение числа солнечных пятен (International Sunspot Number): 091,
получено на основе анализа результатов 26 станций наблюдения.
Солнечные индексы за 18 Apr 2022
Число Вольфа по данным обсерватории Катания (IT9): ///
Плотность потока излучения: 135
A-индекс по данным обсерватории Chambon-la-Foret (F): 019
A-индекс по данным обсерватории Wingst (DL): 010
Планетарный А-индекс Ap: 010
Вчерашнее значение числа солнечных пятен (International Sunspot Number): 096,
получено на основе анализа результатов 26 станций наблюдения.
Прошедшие события на Солнце:
DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES
18 1712 1724 1731 S31W87 M1.9 SF ///2987 III/2
19 0443 0450 0459 ////// M1.0 150 81/2993